Rema the Truth

In the year 2052, in the midst of a world in political crisis, a young man known only as T.C. stumbles into an encounter with a mysterious android named Rema. Built to resemble a young woman, Rema has the capacity to learn and experience human emotions but appears to be a blank slate. T.C. impulsively decides to help her escape from the people who are pursuing her, and they set out on a journey that will shape the person she grows into becoming.

[From Moby Games]